#103C59#103C59

#103C59 is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.2% C 0.069 H 242.1°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#103C59
RGB	rgb(16, 60, 89)
HSL	hsl(204, 70%, 21%)
HSV	hsv(204, 82%, 35%)
CMYK	cmyk(82%, 32.6%, 0%, 65.1%)
CIE-LAB	lab(23.88, -3.47, -21.61)
CIE-LCH	lch(23.88, 21.88, 260.86°)
OKLab	oklab(34.19% -0.0324 -0.0612)
OKLCH	oklch(34.19% 0.069 242.1)
XYZ	xyz(3.6320, 4.0627, 10.0420)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C59 #592D10

analogous

#105951 #103C59 #101759

triadic

#103C59 #59103C #3C5910

tetradic

#103C59 #511059 #592D10 #175910

square

#103C59 #511059 #592D10 #175910

split-complementary

#103C59 #591017 #595110

monochromatic

#05111A #071925 #103C59 #195F8D #2382C1

Accessibility & contrast

On white

11.59

#103C59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103C59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C59

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C59	#FFFFFF	#000000	##FFFFFF
##103C59	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3D5A

Deuteranopia (green-blind)

#243658

Tritanopia (blue-blind)

#004346

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103c59;
/* rgb */ color: rgb(16, 60, 89);
/* oklch */ color: oklch(34.2% 0.069 242.1);

Tailwind

colors: {
  custom: {
    50: '#5b7188',
    500: '#103c59',
    950: '#000000',
  },
}

SCSS

$custom: #103c59;
$custom-light: #5b7188;
$custom-dark: #000000;

JSON

{
  "hex": "#103c59",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 89
  },
  "hsl": {
    "h": 203.836,
    "s": 69.524,
    "l": 20.588
  },
  "oklch": {
    "l": 0.34189,
    "c": 0.06922,
    "h": 242.1
  },
  "luminance": 0.04063
}

Semantic roles & 50–950 ramp

primary

#103C59

secondary

#925933

accent

#823BEC

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103C59

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →